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  <h1 id="使用Django开发CMDB资产管理平台"><a href="#使用Django开发CMDB资产管理平台" class="headerlink" title="使用Django开发CMDB资产管理平台"></a>使用Django开发CMDB资产管理平台</h1><h2 id="快速搭建Django项目"><a href="#快速搭建Django项目" class="headerlink" title="快速搭建Django项目"></a>快速搭建Django项目</h2><p>注意<a target="_blank" rel="noopener" href="https://docs.djangoproject.com/en/3.1/faq/install/">版本的选择</a>，本项目选择Django 2.2.8，高手推荐3.0+。</p>
<table>
<thead>
<tr>
<th>Django version</th>
<th>Python versions</th>
</tr>
</thead>
<tbody><tr>
<td>1.11</td>
<td>2.7, 3.4, 3.5, 3.6, 3.7 (added in 1.11.17)</td>
</tr>
<tr>
<td>2.0</td>
<td>3.4, 3.5, 3.6, 3.7</td>
</tr>
<tr>
<td>2.1</td>
<td>3.5, 3.6, 3.7</td>
</tr>
<tr>
<td>2.2</td>
<td>3.5, 3.6, 3.7, 3.8 (added in 2.2.8), 3.9 (added in 2.2.17)</td>
</tr>
<tr>
<td>3.0</td>
<td>3.6, 3.7, 3.8, 3.9 (added in 3.0.11)</td>
</tr>
<tr>
<td>3.1</td>
<td>3.6, 3.7, 3.8, 3.9 (added in 3.1.3)</td>
</tr>
</tbody></table>
<h2 id="使用虚拟环境"><a href="#使用虚拟环境" class="headerlink" title="使用虚拟环境"></a>使用虚拟环境</h2><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">#安装</span><br><span class="line">pip install virtualenv</span><br><span class="line">#创建虚拟目录</span><br><span class="line">virtualenv venv</span><br><span class="line">#激活虚拟环境</span><br><span class="line">source venv&#x2F;bin&#x2F;activate</span><br></pre></td></tr></table></figure>

<h3 id="安装Django"><a href="#安装Django" class="headerlink" title="安装Django"></a>安装Django</h3><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">pip install Django&#x3D;&#x3D;2.2.8</span><br><span class="line">#查看当前版本</span><br><span class="line">pip list|grep Django</span><br></pre></td></tr></table></figure>

<h3 id="创建项目"><a href="#创建项目" class="headerlink" title="创建项目"></a>创建项目</h3><p>使用 django-admin 来创建 CMDBWEB 项目：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">django-admin startproject CMDBWEB</span><br></pre></td></tr></table></figure>
<p>目录说明：</p>
<ul>
<li><strong>CMDBWEB:</strong> 项目的容器。</li>
<li><strong>manage.py:</strong> 一个实用的命令行工具，可让你以各种方式与该 Django 项目进行交互。</li>
<li><strong>CMDBWEB/<strong>init</strong>.py:</strong> 一个空文件，告诉 Python 该目录是一个 Python 包。</li>
<li><strong>CMDBWEB/settings.py:</strong> 该 Django 项目的设置/配置。</li>
<li><strong>CMDBWEB/urls.py:</strong> 该 Django 项目的 URL 声明; 一份由 Django 驱动的网站”目录”。</li>
<li><strong>CMDBWEB/wsgi.py:</strong> 一个 WSGI 兼容的 Web 服务器的入口，以便运行你的项目。<br>接下来我们进入 CMDBWEB 目录输入以下命令，启动服务器：<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">python3 manage.py runserver</span><br></pre></td></tr></table></figure>
浏览器访问 <a href="http://127.0.0.1:8000，看到小火箭，就成功了一小步。">http://127.0.0.1:8000，看到小火箭，就成功了一小步。</a></li>
</ul>
<p>创建管理员账号(可选)</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">python manage.py createsuperuser</span><br><span class="line">#浏览器访问 http:&#x2F;&#x2F;127.0.0.1:8000&#x2F;admin</span><br></pre></td></tr></table></figure>

<p>使用 django-admin 来创建 CMDBWEB APP(模块)：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">django-admin startapp ServerMgr</span><br></pre></td></tr></table></figure>

<p>接下来在settings.py中找到INSTALLED_APPS这一项，如下：</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line">INSTALLED_APPS = (</span><br><span class="line">    &#x27;django.contrib.admin&#x27;,</span><br><span class="line">    &#x27;django.contrib.auth&#x27;,</span><br><span class="line">    &#x27;django.contrib.contenttypes&#x27;,</span><br><span class="line">    &#x27;django.contrib.sessions&#x27;,</span><br><span class="line">    &#x27;django.contrib.messages&#x27;,</span><br><span class="line">    &#x27;django.contrib.staticfiles&#x27;,</span><br><span class="line">    &#x27;ServerMgr&#x27;,               # 添加此项</span><br><span class="line">)</span><br></pre></td></tr></table></figure>
<p>模板路径必须改：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line">TEMPLATES &#x3D; [</span><br><span class="line">    &#123;</span><br><span class="line">        &#39;BACKEND&#39;: &#39;django.template.backends.django.DjangoTemplates&#39;,</span><br><span class="line">        &#39;DIRS&#39;: [os.path.join(BASE_DIR, &#39;templates&#39;)], #修改此项</span><br><span class="line">        &#39;APP_DIRS&#39;: True,</span><br><span class="line">        &#39;OPTIONS&#39;: &#123;</span><br><span class="line">            &#39;context_processors&#39;: [</span><br><span class="line">                &#39;django.template.context_processors.debug&#39;,</span><br><span class="line">                &#39;django.template.context_processors.request&#39;,</span><br><span class="line">                &#39;django.contrib.auth.context_processors.auth&#39;,</span><br><span class="line">                &#39;django.contrib.messages.context_processors.messages&#39;,</span><br><span class="line">            ],</span><br><span class="line">        &#125;,</span><br><span class="line">    &#125;,</span><br><span class="line">]</span><br></pre></td></tr></table></figure>

<p>修改其他配置（可选）</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">注释以下行</span><br><span class="line"># &#39;django.middleware.csrf.CsrfViewMiddleware&#39;,</span><br></pre></td></tr></table></figure>

<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">#修改时区</span><br><span class="line">LANGUAGE_CODE &#x3D; &#39;zh-hans&#39;</span><br><span class="line">TIME_ZONE &#x3D; &#39;Asia&#x2F;Shanghai&#39;</span><br><span class="line">USE_I18N &#x3D; True</span><br><span class="line">USE_L10N &#x3D; True</span><br><span class="line">USE_TZ &#x3D; True</span><br></pre></td></tr></table></figure>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">#允许所有IP</span><br><span class="line">ALLOWED_HOSTS &#x3D; [&#39;*&#39;]</span><br></pre></td></tr></table></figure>

<p>在主目录的urls中添加访问路径</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">from</span> django.contrib <span class="keyword">import</span> admin</span><br><span class="line"><span class="keyword">from</span> django.urls <span class="keyword">import</span> path</span><br><span class="line"><span class="keyword">from</span> django.conf.urls <span class="keyword">import</span> url</span><br><span class="line"><span class="keyword">from</span> ServerMgr <span class="keyword">import</span> views <span class="keyword">as</span> servermgr</span><br><span class="line">urlpatterns = [</span><br><span class="line">    path(<span class="string">&#x27;admin/&#x27;</span>, admin.site.urls),</span><br><span class="line">    path(<span class="string">&#x27;index&#x27;</span>, servermgr.index),</span><br><span class="line">]</span><br></pre></td></tr></table></figure>
<p>视图和 URL 配置</p>
<p>在根目录下创建templates目录，在templates目录下新建index.html文件，代码如下：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">&lt;h1&gt;&#123;&#123; hello &#125;&#125;&lt;&#x2F;h1&gt;</span><br></pre></td></tr></table></figure>
<p>修改ServerMgr/views.py</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">from</span> django.shortcuts <span class="keyword">import</span> render</span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">index</span>(<span class="params">request</span>):</span></span><br><span class="line">    context= &#123;&#125;</span><br><span class="line">    context[<span class="string">&#x27;hello&#x27;</span>] = <span class="string">&#x27;Hello World!&#x27;</span></span><br><span class="line">    <span class="keyword">return</span> render(request, <span class="string">&#x27;index.html&#x27;</span>, context)</span><br></pre></td></tr></table></figure>

<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">#启动项目</span><br><span class="line">python3 manage.py runserver</span><br></pre></td></tr></table></figure>

<p>浏览器访问：<a target="_blank" rel="noopener" href="http://127.0.0.1:8000/index">http://127.0.0.1:8000/index</a></p>
<h2 id="配置数据库"><a href="#配置数据库" class="headerlink" title="配置数据库"></a>配置数据库</h2><p>这里使用sqlite进行操作，在settings.py中进行配置：</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">DATABASES = &#123;</span><br><span class="line">    <span class="string">&#x27;default&#x27;</span>: &#123;</span><br><span class="line">        <span class="string">&#x27;ENGINE&#x27;</span>: <span class="string">&#x27;django.db.backends.sqlite3&#x27;</span>,</span><br><span class="line">        <span class="string">&#x27;NAME&#x27;</span>: os.path.join(BASE_DIR, <span class="string">&#x27;db.sqlite3&#x27;</span>),</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<p>Mysql配置参考：</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br></pre></td><td class="code"><pre><span class="line">DATABASES = &#123;</span><br><span class="line">    <span class="string">&#x27;default&#x27;</span>: &#123;</span><br><span class="line">        <span class="string">&#x27;ENGINE&#x27;</span>: <span class="string">&#x27;django.db.backends.mysql&#x27;</span>,</span><br><span class="line">        <span class="string">&#x27;NAME&#x27;</span>: <span class="string">&#x27;djangoblog&#x27;</span>,</span><br><span class="line">        <span class="string">&#x27;USER&#x27;</span>: <span class="string">&#x27;root&#x27;</span>,</span><br><span class="line">        <span class="string">&#x27;PASSWORD&#x27;</span>: <span class="string">&#x27;password&#x27;</span>,</span><br><span class="line">        <span class="string">&#x27;HOST&#x27;</span>: <span class="string">&#x27;host IP address&#x27;</span>,</span><br><span class="line">        <span class="string">&#x27;PORT&#x27;</span>: <span class="number">3306</span>,</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<p>数据库链接工具推荐：Navicat 或DBeaver（支持sqlite）</p>
<h2 id="Django自动建表（推荐）"><a href="#Django自动建表（推荐）" class="headerlink" title="Django自动建表（推荐）"></a>Django自动建表（推荐）</h2><p>（自动创建自增id）</p>
<p>修改ServerMgr/models.py</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">from</span> django.db <span class="keyword">import</span> models</span><br><span class="line"></span><br><span class="line"><span class="class"><span class="keyword">class</span> <span class="title">ServerInfo</span>(<span class="params">models.Model</span>):</span></span><br><span class="line">    hostname = models.TextField(max_length=<span class="number">50</span>)</span><br><span class="line">    os = models.TextField(max_length=<span class="number">50</span>)</span><br><span class="line">    cpu = models.TextField(max_length=<span class="number">10</span>)</span><br><span class="line">    memory = models.TextField(max_length=<span class="number">10</span>)</span><br><span class="line">    ip = models.TextField(max_length=<span class="number">20</span>)</span><br><span class="line"></span><br><span class="line">    <span class="class"><span class="keyword">class</span> <span class="title">Meta</span>:</span></span><br><span class="line">        db_table = <span class="string">&#x27;SERVER_INFO&#x27;</span></span><br></pre></td></tr></table></figure>

<h3 id="自动建表"><a href="#自动建表" class="headerlink" title="自动建表"></a>自动建表</h3><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">python manage.py makemigrations</span><br><span class="line">python manage.py migrate</span><br></pre></td></tr></table></figure>

<h2 id="使用SQL建表（可选）"><a href="#使用SQL建表（可选）" class="headerlink" title="使用SQL建表（可选）"></a>使用SQL建表（可选）</h2><h3 id="建表"><a href="#建表" class="headerlink" title="建表"></a>建表</h3><figure class="highlight sql"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">CREATE</span> <span class="keyword">TABLE</span> SERVER_INFO (</span><br><span class="line">	<span class="keyword">id</span> <span class="built_in">INTEGER</span> <span class="keyword">NOT</span> <span class="literal">NULL</span> PRIMARY <span class="keyword">KEY</span> AUTOINCREMENT,</span><br><span class="line">	hostname <span class="built_in">TEXT</span>(<span class="number">50</span>),</span><br><span class="line">	os <span class="built_in">TEXT</span>(<span class="number">50</span>),</span><br><span class="line">	cpu <span class="built_in">TEXT</span>(<span class="number">10</span>),</span><br><span class="line">	<span class="keyword">memory</span> <span class="built_in">TEXT</span>(<span class="number">10</span>),</span><br><span class="line">	ip <span class="built_in">TEXT</span>(<span class="number">20</span>)</span><br><span class="line">);</span><br><span class="line"></span><br></pre></td></tr></table></figure>

<h3 id="反向生成模型"><a href="#反向生成模型" class="headerlink" title="反向生成模型"></a>反向生成模型</h3><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">python manage.py inspectdb SERVER_INFO &gt;&gt;ServerMgr&#x2F;models.py</span><br></pre></td></tr></table></figure>

<h2 id="插入测试数据"><a href="#插入测试数据" class="headerlink" title="插入测试数据"></a>插入测试数据</h2><figure class="highlight sql"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">INSERT</span> <span class="keyword">INTO</span> SERVER_INFO (hostname,os,cpu,<span class="keyword">memory</span>,ip) <span class="keyword">VALUES</span> (<span class="string">&#x27;Ali-server1&#x27;</span>,<span class="string">&#x27;Centos7&#x27;</span>,<span class="string">&#x27;2C&#x27;</span>,<span class="string">&#x27;2G&#x27;</span>,<span class="string">&#x27;47.103.211.23&#x27;</span>);</span><br><span class="line"><span class="keyword">INSERT</span> <span class="keyword">INTO</span> SERVER_INFO (hostname,os,cpu,<span class="keyword">memory</span>,ip) <span class="keyword">VALUES</span> (<span class="string">&#x27;Tx-server1&#x27;</span>,<span class="string">&#x27;Ubuntu20&#x27;</span>,<span class="string">&#x27;2C&#x27;</span>,<span class="string">&#x27;2G&#x27;</span>,<span class="string">&#x27;49.234.187.88&#x27;</span>);</span><br><span class="line"><span class="keyword">INSERT</span> <span class="keyword">INTO</span> SERVER_INFO (hostname,os,cpu,<span class="keyword">memory</span>,ip) <span class="keyword">VALUES</span> (<span class="string">&#x27;Hw-server1&#x27;</span>,<span class="string">&#x27;Centos7&#x27;</span>,<span class="string">&#x27;2C&#x27;</span>,<span class="string">&#x27;4G&#x27;</span>,<span class="string">&#x27;121.37.171.107&#x27;</span>);</span><br></pre></td></tr></table></figure>

<h2 id="数据库操作"><a href="#数据库操作" class="headerlink" title="数据库操作"></a>数据库操作</h2><h3 id="数据查询"><a href="#数据查询" class="headerlink" title="数据查询"></a>数据查询</h3><p>urls.py添加代码，注意/不要少</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">from</span> ServerMgr <span class="keyword">import</span> views <span class="keyword">as</span> servermgr</span><br><span class="line">urlpatterns = [</span><br><span class="line">    path(<span class="string">&#x27;admin/&#x27;</span>, admin.site.urls),</span><br><span class="line">    path(<span class="string">&#x27;index/&#x27;</span>, servermgr.index),</span><br><span class="line">    path(<span class="string">&#x27;show/&#x27;</span>, servermgr.show),</span><br><span class="line">]</span><br></pre></td></tr></table></figure>

<p>修改ServerMgr/views.py</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">from</span> django.shortcuts <span class="keyword">import</span> render</span><br><span class="line"><span class="keyword">from</span> .models <span class="keyword">import</span> ServerInfo</span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">show</span>(<span class="params">request</span>):</span></span><br><span class="line">    res_list = ServerInfo.objects.values(<span class="string">&#x27;hostname&#x27;</span>,<span class="string">&#x27;os&#x27;</span>,<span class="string">&#x27;cpu&#x27;</span>,<span class="string">&#x27;memory&#x27;</span>,<span class="string">&#x27;ip&#x27;</span>)</span><br><span class="line">    context = &#123;<span class="string">&#x27;title&#x27;</span>: <span class="string">&#x27;首页&#x27;</span>, <span class="string">&#x27;res_list&#x27;</span>: res_list&#125;</span><br><span class="line">    <span class="keyword">return</span> render(request, <span class="string">&#x27;serverlist.html&#x27;</span>, context=context)</span><br><span class="line"></span><br><span class="line"><span class="comment"># 也可以使用locals()</span></span><br><span class="line"><span class="comment"># def show(request):</span></span><br><span class="line"><span class="comment">#     res_list = ServerInfo.objects.values(&#x27;hostname&#x27;,&#x27;os&#x27;,&#x27;cpu&#x27;,&#x27;memory&#x27;,&#x27;ip&#x27;)</span></span><br><span class="line"><span class="comment">#     return render(request, &#x27;serverlist.html&#x27;, context=locals())</span></span><br></pre></td></tr></table></figure>

<p>添加templates/serverlist.html</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">&lt;!DOCTYPE <span class="meta-keyword">html</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">html</span> <span class="attr">lang</span>=<span class="string">&quot;en&quot;</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">head</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">meta</span> <span class="attr">charset</span>=<span class="string">&quot;utf-8&quot;</span> /&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">title</span>&gt;</span><span class="tag">&lt;/<span class="name">title</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">head</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">body</span>&gt;</span></span><br><span class="line"></span><br><span class="line"><span class="tag">&lt;<span class="name">table</span> <span class="attr">class</span>=<span class="string">&quot;table mb0 pr15 ranger-box2  &quot;</span>&gt;</span></span><br><span class="line">                        <span class="tag">&lt;<span class="name">thead</span>&gt;</span></span><br><span class="line">                            <span class="tag">&lt;<span class="name">tr</span>&gt;</span></span><br><span class="line">                                <span class="tag">&lt;<span class="name">th</span> <span class="attr">style</span>=<span class="string">&quot;width: 15%;&quot;</span>&gt;</span>主机名<span class="tag">&lt;/<span class="name">th</span>&gt;</span></span><br><span class="line">                                <span class="tag">&lt;<span class="name">th</span> <span class="attr">style</span>=<span class="string">&quot;width: 15%;&quot;</span>&gt;</span>类别<span class="tag">&lt;/<span class="name">th</span>&gt;</span></span><br><span class="line">                                <span class="tag">&lt;<span class="name">th</span> <span class="attr">style</span>=<span class="string">&quot;width: 15%;&quot;</span>&gt;</span>CPU<span class="tag">&lt;/<span class="name">th</span>&gt;</span></span><br><span class="line">                                <span class="tag">&lt;<span class="name">th</span> <span class="attr">style</span>=<span class="string">&quot;width: 15%;&quot;</span>&gt;</span>内存<span class="tag">&lt;/<span class="name">th</span>&gt;</span></span><br><span class="line">                                <span class="tag">&lt;<span class="name">th</span> <span class="attr">style</span>=<span class="string">&quot;width: 15%;&quot;</span>&gt;</span>IP<span class="tag">&lt;/<span class="name">th</span>&gt;</span></span><br><span class="line">                            <span class="tag">&lt;/<span class="name">tr</span>&gt;</span></span><br><span class="line">                        <span class="tag">&lt;/<span class="name">thead</span>&gt;</span></span><br><span class="line">                        <span class="tag">&lt;<span class="name">tbody</span>&gt;</span></span><br><span class="line">                        &#123;% for res in res_list %&#125;</span><br><span class="line">                            <span class="tag">&lt;<span class="name">tr</span>&gt;</span></span><br><span class="line">                                <span class="tag">&lt;<span class="name">td</span>&gt;</span>&#123;&#123; res.hostname &#125;&#125;<span class="tag">&lt;/<span class="name">td</span>&gt;</span><span class="tag">&lt;<span class="name">td</span>&gt;</span>&#123;&#123; res.os &#125;&#125;<span class="tag">&lt;/<span class="name">td</span>&gt;</span><span class="tag">&lt;<span class="name">td</span>&gt;</span>&#123;&#123; res.cpu &#125;&#125;<span class="tag">&lt;/<span class="name">td</span>&gt;</span><span class="tag">&lt;<span class="name">td</span>&gt;</span>&#123;&#123; res.memory &#125;&#125;<span class="tag">&lt;/<span class="name">td</span>&gt;</span><span class="tag">&lt;<span class="name">td</span>&gt;</span>&#123;&#123; res.ip &#125;&#125;<span class="tag">&lt;/<span class="name">td</span>&gt;</span></span><br><span class="line">                            <span class="tag">&lt;/<span class="name">tr</span>&gt;</span></span><br><span class="line">                        &#123;% endfor %&#125;</span><br><span class="line">                        <span class="tag">&lt;/<span class="name">tbody</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">table</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">body</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">html</span>&gt;</span></span><br></pre></td></tr></table></figure>

<p>浏览器访问：<a target="_blank" rel="noopener" href="http://127.0.0.1:8000/show">http://127.0.0.1:8000/show</a></p>
<h3 id="添加数据"><a href="#添加数据" class="headerlink" title="添加数据"></a>添加数据</h3><p>修改urls.py</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">from ServerMgr import views as servermgr</span><br><span class="line"></span><br><span class="line">urlpatterns &#x3D; [</span><br><span class="line">    path(&#39;admin&#x2F;&#39;, admin.site.urls),</span><br><span class="line">    path(&#39;show&#x2F;&#39;, servermgr.show),</span><br><span class="line">    path(&#39;addserver&#x2F;&#39;, servermgr.addserver),</span><br><span class="line"></span><br><span class="line">]</span><br></pre></td></tr></table></figure>

<p>添加数据需要先创建对象，然后再执行 save 函数，相当于SQL中的INSERT</p>
<p>在ServerMgr中修改views.py, 代码如下：</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">from</span> django.http <span class="keyword">import</span> HttpResponse</span><br><span class="line"><span class="keyword">from</span> .models <span class="keyword">import</span> ServerInfo</span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">addserver</span>(<span class="params">request</span>):</span></span><br><span class="line">    server1 = ServerInfo(hostname=<span class="string">&#x27;hw-server2&#x27;</span>,os=<span class="string">&#x27;Centos7&#x27;</span>,cpu=<span class="string">&#x27;4c&#x27;</span>,memory=<span class="string">&#x27;8G&#x27;</span>,ip=<span class="string">&#x27;192.168.1.111&#x27;</span>)</span><br><span class="line">    server1.save()</span><br><span class="line">    <span class="keyword">return</span> HttpResponse(<span class="string">&quot;&lt;p&gt;数据添加成功！&lt;/p&gt;&quot;</span>)</span><br></pre></td></tr></table></figure>

<p>新建views.py, 配置如下：浏览器访问</p>
<p><a target="_blank" rel="noopener" href="http://127.0.0.1:8000/addserver">http://127.0.0.1:8000/addserver</a></p>
<p>显示 数据添加成功！</p>
<p>再次查询结果，可以看到新添加的记录</p>
<p><a target="_blank" rel="noopener" href="http://127.0.0.1:8000/show">http://127.0.0.1:8000/show</a></p>
<h2 id="Django-Web路由分发（可选）"><a href="#Django-Web路由分发（可选）" class="headerlink" title="Django Web路由分发（可选）"></a>Django Web路由分发（可选）</h2><p>之前所有的访问都集中在一个url.py中，不便管理。可以修改代码拆分url，添加路由分发功能：</p>
<p>主文件urls.py, 添加include</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">from</span> django.contrib <span class="keyword">import</span> admin</span><br><span class="line"><span class="keyword">from</span> django.urls <span class="keyword">import</span> path, include</span><br><span class="line"><span class="keyword">from</span> django.conf.urls <span class="keyword">import</span> url</span><br><span class="line">urlpatterns = [</span><br><span class="line">    path(<span class="string">&#x27;admin/&#x27;</span>, admin.site.urls),</span><br><span class="line">    url(<span class="string">&#x27;hello&#x27;</span>, view.hello),</span><br><span class="line">    url(<span class="string">r&#x27;^person/&#x27;</span>, include(<span class="string">&quot;ServerMgr.urls&quot;</span>)),</span><br><span class="line">]</span><br></pre></td></tr></table></figure>

<p>在ServerMgr中新建urls</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">from</span> django.conf.urls <span class="keyword">import</span> url</span><br><span class="line"><span class="keyword">from</span> ServerMgr <span class="keyword">import</span> views</span><br><span class="line">urlpatterns = [</span><br><span class="line">    url(<span class="string">r&#x27;^addname$&#x27;</span>, views.addname),</span><br><span class="line">]</span><br></pre></td></tr></table></figure>

<p>浏览器访问：<br><a target="_blank" rel="noopener" href="http://127.0.0.1:8000/person/addname">http://127.0.0.1:8000/person/addname</a><br>也可以达到添加用户的功能。</p>
<h2 id="其他"><a href="#其他" class="headerlink" title="其他"></a>其他</h2><p>重新生成表的方法</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">#删除 migrations&#x2F;0001_initial.py...</span><br><span class="line">#删除 django_migrations表中最新记录</span><br><span class="line">python manage.py makemigrations</span><br><span class="line">python manage.py migrate</span><br></pre></td></tr></table></figure>

<p>Django配置ibm_db 未测试</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br></pre></td><td class="code"><pre><span class="line">pip install ibm_db_django</span><br><span class="line"></span><br><span class="line"> DATABASES &#x3D; &#123;</span><br><span class="line">      &#39;default&#39;: &#123;</span><br><span class="line">         &#39;ENGINE&#39;     : &#39;ibm_db_django&#39;,</span><br><span class="line">         &#39;NAME&#39;       : &#39;mydb&#39;,</span><br><span class="line">         &#39;USER&#39;       : &#39;db2inst1&#39;,</span><br><span class="line">         &#39;PASSWORD&#39;   : &#39;ibmdb2&#39;,</span><br><span class="line">         &#39;HOST&#39;       : &#39;localhost&#39;,</span><br><span class="line">         &#39;PORT&#39;       : &#39;50000&#39;,</span><br><span class="line">         &#39;PCONNECT&#39;   :  True,      #Optional property, default is false</span><br><span class="line">      &#125;</span><br><span class="line">   &#125;</span><br></pre></td></tr></table></figure>

 
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